Case study: Insurance To better illustrate the work of APIs, let us return to the real-world example of the insurance comparison site.

APIs are application programming interfaces. They are pieces of software that act as a bridge between one application and another application, piece of hardware or database of information, for ...

Developers use application programming interfaces to hide complexity, organize code, design reusable components, and connect different systems, applications, or services.

API stands for "application programming interface," and it's a framework that allows programs to communicate and connect with each other.

It's not unusual for a platform as big as Twitter to have an API that's accessible to the public, as it provides more ways for people to use the platform -- a relationship that can be beneficial ...